可开启烽火台大门的钥匙。加强警戒后封锁出入口时，必须持有这把钥匙才可通行。
A key that oepns the beacon gate. When security is tight, this key is required to unlock the entrance.
可开启烽火台大门的钥匙。加强警戒后封锁出入口时，必须持有这把钥匙才可通行。
A key that oepns the beacon gate. When security is tight, this key is required to unlock the entrance.